The length of the shorter wire is 12 cm
Step-by-step explanation:
Let us assume that the 27 cm wire is cut into two pieces of length x cm and so the longer part would be x+3 cm.
Now we know that the total length of the wire is 27cm so
x+(x+3) = 27
2x+3 = 27
2x = 27-3
2x = 24
x = 12 cm